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I²C (Inter-Integrated Circuit) is a multi-drop serial bus invented by Philips (now NXP) for communication between ICs on the same PCB, i.e. short distance.

3
votes
2answers
I am using ATmega32A and 24c16A EEPROM for testing an I2C code. For every state transition, controller responds by changing the status register TWSR. After start condition is transmitted, EEPROM …
asked May 2 '14 by gzix
0
votes
1answer
We are testing an I2C accelerometer connected to the ATMega32A micro-controller. The accelerometer was working fine. We can write and read the registers using I2C protocol. When connected to the … oscilloscope, we find it very hard to decode the signals to normal value. We are just writing a value 0x08 (00001000) into the register 0x10 (00010000). As per the I2C protocol, after the start …
asked Oct 15 '14 by gzix
1
vote
1answer
Lately i have been using ATMega32A and ATMega324PA and learnt various coding techniques in AVR C programming. One such code i wrote is avr_twi.c for communicating with an I2C accelerometer Now i got … migrated to ATXMega32D4, and I can cope up with the new device with few difficulties. Yet I can't get the I2C programming for the XMega series and specifically for ATXMega32D4 to work. The code is …
asked Dec 2 '14 by gzix